*{
  margin: 0;padding: 0;list-style: none;box-sizing: border-box;
}
html,body,#root,.Index{
  width: 100%;height: 100%;
}
header{
  width: 100%;
  height: 30px;
}
main{
  width: 100%;
  height:  calc( 100% - 85px );
  overflow-y: scroll;
}
.classifts{
  width:100%;
  height: 100%;
  display: flex;
}

.rights{
  width: 80%;
  display: flex;
  flex-wrap: wrap;
}
.rights .divs{
  width: 50%;
}